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Table 3 Predictors of diagnosed angina/heart attack and asthma for those directly exposed a, including area workers stratified by whether they returned or did not return to work, and passersbya, South of Chambers Street before December 31, 2001, World Trade Center Health Registry, 2003–2012

From: Injury, intense dust exposure, and chronic disease among survivors of the World Trade Center terrorist attacks of September 11, 2001

  Area Workers Passersby
Returned to Work (N = 5318) Did Not Return to Work (N = 2185) (N = 818)
Characteristics Angina/Heart Attackb Asthmab Angina/Heart Attackb Asthmab Angina/Heart Attackb Asthmab
AHR (95% CI) AHR (95% CI) AHR (95% CI) AHR (95% CI) AHR (95% CI) AHR (95% CI)
Number of Events 57 190 21 66 11 26
Number of Injury Types
 0 Ref. Ref. Ref. Ref. Ref. Ref.
 1 2.1 (0.9, 4.8) 1.7 (1.1, 2.6) 1.2 (0.3, 4.4) 0.5 (0.2, 1.1) 8.1 (2.0, 33.0) 1.8 (0.5, 6.2)
 2 2.8 (0.7, 11.9) 0.6 (0.1, 2.3) 2.7 (0.5, 13.2) 1.4 (0.5, 4.0) 0.0 0.0
 3+ 18.3 (4.1, 82.2) 2.9 (0.7, 11.8) 9.0 (0.98, 83.5) 0.0 0.0 0.0
Dust Cloud Exposure
 Intense 0.8 (0.4, 1.3) 1.1 (0.8, 1.5) 1.1 (0.4, 2.9) 2.0 (1.2, 3.3) 0.9 (0.2, 3.3) 0.8 (0.3, 1.9)
 Some/None Ref Ref Ref Ref Ref. Ref.
PTSD at Wave 1
 Yes 0.9 (0.4, 2.0) 1.1 (0.8, 1.7) 0.9 (0.3, 3.2) 0.8 (0.4, 1.6) 1.3 (0.3, 6.4) 0.9 (0.3, 3.1)
 No Ref Ref Ref Ref Ref. Ref.
  1. aRescue/Recovery Workers and residents not included because of small sample size
  2. bMultivariable model is adjusted for all variables shown plus BMI, smoking, high blood pressure, study recruitment source, age, gender, race/ethnicity, and education